True or False – Science II (Important for board paper)

In hydroelectric power plant, the kinetic energy in water stored in dam is converted into potential energy of water.

X-rays and radiations from atomic energy plants are natural radiations.

In nuclear power plants, the chain reactions cannot be controlled.

Herdmania has notochord in only tail region and hence it is called Urochordate.

Only mammals are homeothermic animals.

The pollen grains from anthers fall on stigma of carpel.

Ethanol is obtained from sugarcane molasses by carrying out fermentation with the help of acetic acid.

Tobacco containing substances cannot cause cancer of mouth and lungs.

Absence of genetic recombination is an advantage whereas rapidity of the process is a drawback of asexual reproductive method.

Dr. Har Govind Khorana was awarded Nobel prize for his invention and publication in the journal Radio carbon.